Table of Contents
- 1 What is the hyphen notation of uranium?
- 2 What is the hyphen notation for an element with 13 protons and 14 neutrons?
- 3 Is plutonium a element?
- 4 What’s the hyphen notation for a fluorine atom with a mass number of 19?
- 5 What kind of reaction does plutonium have with hydrogen?
- 6 What happens to the density of plutonium when it melts?
What is the hyphen notation of uranium?
-235
| Hyphen Notation | Mass Number |
|---|---|
| Uranium-235 | |
| Magnesium-24 | |
| Phosphorus-31 | |
| 32 |
What is the hyphen notation for an element with 13 protons and 14 neutrons?
Al-27
The isotope Al-27 has 13 protons and 14 neutrons. Aluminum’s average atomic mass is 26.981539 AMU. The atomic mass of this isotope, 27 AMU, is the…
What is the hyphen notation of fluorine?
What is the atomic number of iron-56? Part A. Write the most common isotope in hyphen notation for the following elements. The most common isotope can be found by rounding the atomic weight found on the periodic table of elements to the nearest whole number.
What type of element is plutonium?
radioactive metal
Plutonium (chemical symbol Pu) is a silvery-gray, radioactive metal that becomes yellowish when exposed to air. Plutonium is considered a man-made element, although scientists have found trace amounts of naturally occurring plutonium produced under highly unusual geologic circumstances. The most common radioisotopes.
Is plutonium a element?
Plutonium (Pu), radioactive chemical element of the actinoid series of the periodic table, atomic number 94. It is the most important transuranium element because of its use as fuel in certain types of nuclear reactors and as an ingredient in nuclear weapons.
What’s the hyphen notation for a fluorine atom with a mass number of 19?
199F
It would be called fluorine-19. The nuclear or isotopic notation would be 199F .
What’s the atomic number of the element plutonium?
Plutonium is a radioactive chemical element with symbol Pu and atomic number 94. It is an actinide metal of silvery-gray appearance that tarnishes when exposed to air, and forms a dull coating when oxidized.
What is the color of pure plutonium at room temperature?
At room temperature, pure plutonium is silvery in color but gains a tarnish when oxidized. The element displays four common ionic oxidation states in aqueous solution and one rare one: Pu (III), as Pu 3+ (blue lavender) Pu (IV), as Pu 4+ (yellow brown)
What kind of reaction does plutonium have with hydrogen?
Plutonium shows enormous, and reversible, reaction rates with pure hydrogen, forming plutonium hydride. It also reacts readily with oxygen, forming PuO and PuO 2 as well as intermediate oxides; plutonium oxide fills 40% more volume than plutonium metal. The metal reacts with the halogens,…
What happens to the density of plutonium when it melts?
Unlike most materials, plutonium increases in density when it melts, by 2.5%, but the liquid metal exhibits a linear decrease in density with temperature. Near the melting point, the liquid plutonium has very high viscosity and surface tension compared to other metals.